Mechanism for changing shuttles in looms.



PATENTED JAN. 15, 1907.

E. J. ENTWISLE.

MECHANISM FOR CHANGING SHUTTLES IN LOOMS.

APPLIOATION FILED FEB. 5. 1906 5 SHEETSSHEET 1.

@L'Ws n12 NORRIS Pirzns cm, WISHINGTON, n. c.

No. 841,492. PATENTED JAN. 15, 1907. B. J. ENTWISLE.

MECHANISM FOR CHANGING SHUTTLES IN LOOMS.

APPLIGATION FILED FEB. 5, 1906.

5 SHEETSSHEET 2.

EB 3m 1n: uoxms PETERS ca, WASHINGTON; m c.

PATENTED JAN. 15, 1907.

E. J. ENTWISLE. MECHANISM FOR CHANGING SHUTTLBS IN LOOMS APPLICATION FILED FEB. 5. 1906.

6 SHEETS-SHEET 3.

rm: NORRIS PETERS cc, WASHINGTON, n. c.

PATENTED JAN. 15, 1907.

E. J. ENTWISLE. MECHANISM FOR CHANGING SHUTTLES IN LOOMS.

APPLICATION FILED FEB. 5. 1906.

5 SHEETSSHEET 4.

THE nonnls PETERS co., WASHINGTON, n. c,

PATENTED JAN. 15, 1907.

E. J. ENTWISL'E. MECHANISM FOR CHANGING SHUTTLES IN LOOMS.

' APPLICATION FILED FEB.5.1906.

5 SHEBTS-SHEET 5.

rm: NORRIS PETERS cm, wAsmncrnm-n. 1:.

ERNEST JAMES ENTWVlSLE, OF BARNSLEY, ENGLAND.

MECHANISM FOR CHANGING SHUTTLES IN LOOMS.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed February 5, 1906. Serial No. 299.407.

T0 (bf/L whom, it may concern;

Be it known that l, ERNEST JAMEs EN- TwIsLE, a subject of the King of Great Britain, and a resident of 18 Caxton street, Barnsley, in the county of York, England, have invented a certain new and useful Improvement in Mechanism for Automatically Chang ing Shuttles in Looms, of which the following description, together with the accompanying sheets of drawings, is a specification.

It relates to mechanism for attachment to looms so that a weft-charged shuttle may be automatically supplied thereto in exchange for the shuttle from which the weft has been exhausted or in which such weft has broken or failed; and my said invention has for its object the production of means that shall enable said functions to be performed in looms of high speed and that without diminishing their speed or reducing the amount of work performed by them, the said means being of such construction and arrangement as to enable them to perform their functions with the greatest precision and without the risks of damages to the shuttles and other parts heretofore encountered when high rates of speed have been attempted to be attained.

In carrying my invention into effect I make use of the devices hereinafter described and as illustrated by the accompanying sheets of drawings, in which Figure 1 is a part-sectional end elevation of a sufficient portion of a loom to illustrate the application of my invention. Certain of the operating parts are shown in two positions in broken and full lines, as hereinafter explained. Fig. 2 is a part-sectional elevation showing the parts illustrated by Fig. 1 as seen from the front of the loom. Fig. 3 is a view similar to Fig. 1, but showing the operating parts in other positions, as hereinafter described. F ig. 4 is a part-sectional plan of the end of the slayboard, whereon my improved devices are mounted. Fig. 5 is an end elevation of a part of the loom and shows certain of the connections hereinafter explained. Figs. 6 and 7 illustrate modified forms of theoperating parts hereinafter described. Figs. 8 and 9 are elevation and plan, respectively, of the shuttle holder or magazine used in connection with my other improved operating parts.

Similar letters and figures of reference in dicate similar parts throughout the several views.

indicates the end frame of the loom, and B the slayboard. On the end frame A is fixed the bracket 1, upon which is mounted the magazine or shuttle-holder 2. On the two end frames A are also fixed the bearings which support the shaft 100, which extends across the loom, carrying at one end the lever 101, so as to be operated by the ordinary weft-lever of the loom in manner well known in order that it may move the lever 3, as hereinafter explained. All these parts, with the exceptions afterward described, are of wellknown construction and perform. old and well-known functions.

To attain the object of my invention, 1 disend or side of the loom on which I mount my shuttle discharging and supplying mechanisms, and in place of same I fix the plate 20 to the end of the slayboard B. The upper surface of this plate 20 is in alinement with the shuttle-race on the slayboard, and its central part 21 forms the bottom part or floor of the shuttle-box. Extending downward from the plate 20 are the brackets or arms 9,upon which are pivoted at 14 the lever-arms 13, and upon these lever-arms is socured the plate 16, which forms the back part of my improved shuttle-box and in which is mounted the usual and well-known swell-lever or sweller.

Pivoted at 15 also to the levers 13 are the two lovers 17, having their projecting ends connected together by the plate 18, which forms the front part of my improved shuttlebox. The lower edges of the levers 17 rest upon and travel over the antifrictionbowls 19, which are mounted on their studs fixed to the brackets 9, and said lovers are made to always keep their position in contact with the bowls 19 by spring 27.

The upper ends of the levers 13 are coupled together by the bar 12, from which depends the projection 10, carrying the antifriction-bowl 11, and these levers 13 and the parts they carry are when free brought into their relative normal positions (shown by Fig. 1) by their retracting-springs 33.

Pivoted upon the projection 24, extending from the plate 20, is the lever 22, the lower pense with theordinary shuttle-box on that.

arm 26 of which when moved, as hereinafter Overhanging the bowl 11 is a projecting flange 70, formed of the inclined shape, as illustrated, and having a lever-arm 7 mounted u on the shaft 71, carried by the bearing 72, 'xed to the end frame A, so that on the other end of said shaft 71 may be fixed the lever 6, actuated by the yielding spring 5, carried. by the connecting-rod 4, pivotally coupled to the lever 3, hereinbefore described.

The actions of the several parts are as fol lows: Provided the weft is intact, then the several I tions (shown in full and broken lines by Fig. 1) throughout the advancing and receding motions of the slayboard B. However, should the weft fail, as by being exhausted or broken, then the usual weft-fork mechanism would be put into operation, and as such is coupled to move the rod 4 this latter would press upon the lever 6 to bring down the lever 7 until its part would be in contact with the arresting and supporting piece 8, fixed upon the end frame A. At the time such action of the part 70 was carried out the ,layboard and the parts mounted upon it would be in their advanced position, so that on their return the bowl 11, instead of passing beneath the flange 70, would ride upon or run over it, thus causing the arm 10 to bring the levers 13 into their forward position (shown in full lines of Fig. 3) on the slay board reaching the back center, wherein the front plate 18 is beneath the edge 21 of the plate 20, in which position they will be held by the notched part 23 laying hold of the bar 12 as said bar 12 has been forced over the le ver 22. Now as the shuttle would. at this time be arriving in the shuttle-box, and since this has its back part 16 and front part 18 moved out of position for receiving same while on said back part 16, to which a curved incline part 34 is fixed, is now brought into position 'to guide or deflect the shuttle as it travels over the slayboard to reach said guiding part 34, said shuttle is deflected in its path and is received at the back of the shut tle-box by a receiving-chamber '35, from which it is conducted to any appropriate receptacle beneath The slayboard B will then advance as if to beat up the weft, and in doing so it will bring the parts in their rela tive positions (shown in full lines, Fig. 3) until by its advancing movement it will have brought the arm 26 of the lever 22 into contact with the hunter 28, at which. time the plate 18 will have passed beneath and be yond the lowest shuttle in the magazine 2. As the slayboard will now have nearly reached its most advanced position, the relportion of its advanclng movement maining brings the lever 22 forward to release the bar 12 from the notch 23. Thus the retractingsprings 33 are permitted to act and in retracting the levers 13 cause the levers 17 to travel over the bowls 19 in such manner as parts assume their respective posi- 1 to cause the plate 18 to lay hold of the shuttle 31 and carry the same over the plate 21. into alinement with the reed on the slayboard B and that in ample time before such .slayboard B has reached the back center, by which means the shuttle is brought into position for being picked across the loom at the next actions of the picker and that without having lost a single stroke of such picker or reduced the speed of the loom.

The actions of the arms 13 and the withdrawal of the shuttle from the magazine 2 are permitted by slots 30 being formed in the plate 20 to allow the movements of the said in the magazine 2 by their extremities resting upon the end base-pieces 200 of same, which allow space between them for the front plate 18 to pass through when extracting the lowest shuttle.

As will be observed, the front part 18 of the shuttle-box may be operated in varied ways either as shown by Figs. 1 and 3 or as shown by Fig. 6, in which an inclined plate 201 is made to operate it while its leversar'e pivoted as before at 1.5 to the levers 13, or the levers 1.3 may have the parts 16 extend ing backward from them, as shown by Fig. 7. In either case my movable box front and back parts are employed;

Such being the nature and object of my said. invention, what I claim. is

1. In shuttle changing mechanism for looms, a shuttle-magazine, a shuttle-box having its back and front plates movable relai movement, means for moving said back and front plates laterally relatively to the surface of the base part, one of said. plates being mounted to swing under the lower shuttle in the magazine to engage said shuttle totransfer it, and devices for bringing said operating parts into action on the failing of the weft. 2. In' shuttlechanging mechanism for looms, a shuttle-box formed by having its back and front parts movable over its base part, said base part, levers for supporting and operating said front and back parts, springs for operating said levers in one direction and lever and hunter devices for operating the same levers in the other direction, mechanisms for bringing said levers into action on the fail ing of the weft and a chamber or magazine for holding a supply of weft-charged shuttles substantially as herein specified. 3. In shuttle changing mechanism for I looms, a shuttle-box having a movable back part formed within an inclined or sloping guide-piece at its rear for deflecting the shuttle when same has to be discharged from the loom, a movable front part for said shuttlebox, means for operating said front and back parts, devices for bringing said means into use on the failing of the weft and a magazine arms 13, While the shuttles 31 are supported tively to its base part, said base part being of a width to support a shuttle during such.

(parts, into use on the failing of the weft and a magazine for holding a supply of weftcharged shuttles substantially as herein speci- 5. In shuttle changing mechanism for looms, a shuttle-box having movable back and front parts, spring-retracted lever-arms for actuating said parts, an adjustable incline part for actuating said lever-arms, means for placing said incline part in position on the failing of the weft and a magazine for holding a supply of weft-charged shuttles substantially as herein specified.

6. In shuttle changing mechanism for looms, a shuttle-box having movable back and front parts, spring-retracted lever-arms for actuating said parts, means for moving said lever-arms to carry the box front and back parts forward over its base part, springactuated lever mechanism for locking said lever-arms and the parts they carry in their forward position, bunter devices for releasing said locking mechanism and a magazine for holding a supply of weft-charged shuttles substantially as herein specified.

7. In shuttle changing mechanism for looms, a shuttle-box having movable back and front parts, lever-arms for actuating said back and front parts, a base part for said shuttle-box having lateral slots to allow the i movements of the lever-arms when actuating the back and front parts of the shuttle-box, means for operating the said lever-arms and devicesfrom which the box front part may 1 obtain a weft-charged shuttle substantially as herein specified.

8. In shuttle changing mechanism for looms, a shuttle-magazine, a shuttle-box having movable back and front parts, one of said movable parts of the box being mounted to swing under the lower shuttle in the magazine When a fresh shuttle is to be taken from said magazine, lever-arms for supporting and operating these parts, inclined and bowl devices for actuating said lever arms, and means for bringing said parts into action on the failing of the weft.

9. In shuttle changing mechanism for looms, a shuttle-magazine, a shuttle-box having a movable front part, a movable back part arranged to operate in conjunction therewith, one of said movable parts of the box being mounted to swing under the lower shuttle in the magazine when a fresh shuttle is to be taken from said magazine, an inclined piece mounted in position relatively with said back part to deflect the shuttle when its discharge from the loom is desired, a receptacle for receiving said shuttle when discharged, and means for operating the front and back parts of the shuttle-box to cause the supply of a weft-charged shuttle thereto substantially as herein specified 10. In shuttle-changing mechanism for looms, a shuttle-box having movable back and front parts, a deflector device arranged to be brought into position when the back part is moved over the base of the shuttle box, means for operating said back and front parts and said deflector and devices for supplying a-weft-charged shuttle to the shuttlebox on the discharging of the depleted shuttle substantially as herein specified.

In testimony whereof Ihave affixedmy signature in presence of two witnesses.

ERNEST JAMES ENTWISI'JE. 

